1. Renal Division (C.M.R., G.C.C., S.M.B.), Boston, Massachusetts 02115
2. Department of Medicine, Brigham and Women's Hospital; Harvard Medical School (C.M.R., G.C.C., E.K.A., I.B., S.M.B.);Boston, Massachusetts 02115
3. Department of Medicine; Channing Division of Network Medicine (G.C.C.),Boston, Massachusetts 02115
4. Department of Epidemiology (G.C.C.), Harvard School of Public Health, Boston, Massachusetts 02115
5. Department of Medicine; Division of Endocrinology, Diabetes, and Hypertension (E.K.A.),Boston, Massachusetts 02115
6. Renal Division (I.B.), Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts 02114
7. Department of Medicine; and Division of Pharmacoepidemiology and Pharmacoeconomics (S.M.B.), Boston, Massachusetts 02115
8. DaVita Clinical Research (S.M.B.), Minneapolis, Minnesota 55404